baber/WOPTO huggingface dataset:
Patent GB-477692-A (GB)
Title: Improvements in or relating to the cutting of screwthreads
IPC: B23G1/04
Filed: 1936-07-04
Abstract: 477,692. Cutting screw - threads. HAHN, H., HAHN, O., and TESSKY, K., (trading as INDEX - WERKE HAHN & KOLB). July 4, 1936, No. 18586. Convention date, Nov. 23, 1935. Addition to 334,489, [Class 83 (iii)]. [Class 83 (iii)] Lathes.-The thread-cutting machine described in the parent Specification is modified by the longitudinal movement of the controlling sleeve and the tool. being derived from a cam, which has one groove having a pitch corresponding to that of the thread to be cut, and a second groove for the quick return movement of the tool. The sleeve 14 is reciprocated by an arm 52 having a cam follower 51 engaging a cam 50 on the shaft 6, and embracing the shaft 22 at its end 53. The sleeve 14 is rotated independently of the arm 52 for feeding the tool as described in the parent Specification. The groove 54 imparts to the tool a feed movement corresponding to the pitch of the thread to be cut, the final part of the groove giving a rapid return movement.
Patent GB-1278727-A (GB)
Title: Chair
Inventor: HUNTER FREDERICK CLIVE
IPC: A47C3/04
Filed: 1970-04-17
Abstract: 1278727 Stackable chairs; securing chairs together in rows DESIGN FURNITURE Ltd 19 April 1971 [17 April 1970] 18597/70 Headings A4H and A4U A chair designed for stacking and for interlocking with an adjacent similar chair has four straight legs shaped for interlocking along at least the major part of their length and a seat that does not extend sideways beyond a line joining the top inner edges of the legs at each side. In the form shown, the seat comprises a frame 1, 2 with an upholstered seat member 4 and four legs 5 each of a cross-section providing a groove 10 and tongue 11 of complementary form, the grooves on one side facing one another and those on the other side, as shown, facing away from each other, so that adjacent chairs can be interengaged by lowering one in contact with the other, preferably facilitated by upward convergence of the legs. The chair is provided with a plywood back 7 providing a book rest 8 and a portion 9 for supporting a book or the arms of a person seated behind; an upholstered pad 9<SP>1</SP> is provided. The back of the chair may be narrower than the seat to provide space for arm-rests. Another form Fig. 4 (not shown), is designed for the seat and legs to be integrally moulded in plastics, preferably foamed polystyrene or polyurethane.
Patent GB-432765-A (GB)
Title: An improved non-return valve for use on sphygmomanometers and like instruments
IPC: B26D7/26
Filed: 1934-06-23
Abstract: 432,765. Non-return valves. COSSOR, F., and COSSOR & SON (THERMOMETERS), Ltd., A. C., Accoson Works, Vale Road, Finsbury Park, London. June 23, 1934, No. 18620. [Class 135] A non-return valve for sphygmomanometers and like instruments of the kind comprising a soft cushion of indiarubber co-operating with a knife edge seat has the rubber cushion p mounted in a spring- pressed carrier m having a tubular part n adapted to slide on a removable spigot j carrying the seat. The cushion in the rear of its operative face is formed with a relatively thin neck q the yielding of which permits the valve to seat accurately.
Patent GB-186727-A (GB)
Abstract: 186,727. Belliss &. Morcom, Ltd., and Holliday, P. A. July 7, 1921. Cylinders receiving liquid fuel. - In double-acting engines having intercommunicating twin cylinders and pistons k, l, connected by guided rods g<1>, g<2> and by means such as links k<1>, l<1> to a common connecting-rod m the motion of which may be constrained by a pivoted link o. fuel-injection nozzles or sparkplugs. or both, are located in the passages between the cylinders as at f, h.
Patent GB-784068-A (GB)
Title: Improvements in or relating to photographic printing apparatus
Inventor: SPRIGGS JOHN ERIC
IPC: G03B27/02
Filed: 1955-06-29
Abstract: 784,068. Step and repeat photo-printing apparatus. PICTORIAL MACHINERY, Ltd. March 22, 1956 [June 29, 1955], No. 18817/55. Class 98(2) As shown in drawings accompanying the Provisional Specification the apparatus which is claimed in a form for producing copies in a single row as well as in postage-stamp sheet formation, comprises a heavy base 11 which may stand on a table 10, a bed 16 provided with raising and lowering mechanism as described in Specification 784,067, and which carries a register screen 21 with removable cover 20 having a surface 120 for a photosensitive sheet as described in Specification 784,066 and a transparency holder 47 (not shown but located above the cover 20), as described in Specification 784,069 and which is attached to an upper slide 15 with lamphouse 48 running left-right on tracks 14 in Fig. 1; which upper slide and tracks are mounted on a lower slide 13 running on tracks 12 shown as part of the base 11 and located at right angles to the tracks 14, such running of the lower slide 13 being left-right in the side view of Fig. 2. In use a negative transparency is attached to the lower face of a glass sheet carried by the holder 47 (see Specification 784,069), and orientated with respect to guide lines on the register screen which are parallel to the directions of movements of the slides 13, 15; a sensitive plate is then laid on the upper surface 120 of the cover 20 and slid into place over the register screen ready to receive a series of exposures. The slides 13, 15 are then positioned over the bed 16 which is lowered during movement of the slides and raised by handwheel 43 to provide contact between transparency and sensitive surface for such exposures. Equal distance movements, first of one slide for a row of exposures and then of the other one before succeeding rows, are attained with the aid for each slide of an end block 81 mounted thereon and carrying an abutment face 82, a movable locating block 83 slidably mounted on the adjacent track and having abutment faces 84, 85; a stop unit 86 having an indicator dial length gauge 121, and which is adjustable along a bar 87 extending between the end block 81 and a block 88 also mounted on the slide, a block 89 secured to the other end of the slide and carrying a screw 91 providing an adjustable abutment face 92 for co-operation with a further abutment face 93 of the end block 81 as further described with reference to Figs. 3-9 (not shown). With the aid of five further Figures, also not shown, the complete Specification describes an alternative mechanism using a lead screw for attaining these equal distance movements.
Patent GB-1092918-A (GB)
Title: Improvements in or relating to electric switches
Inventor: VEREBES EUGENE MICHAEL
IPC: F21V33/00
Filed: 1965-05-04
Abstract: 1,092,918. Mechanical switches without quick action. VEREBES & CO. Ltd. May 4, 1965, No. 18844/65. Heading H2B. [Also in Division F4] The bulb holder of a battery-operated lamp is mounted on an insulating member which is pivotably supported within the lamp body and has a lug extending through a slot in the wall thereof for manual operation whereby a contact on said insulating member may be pivoted into and out of engagement with a fixed contact in the lamp body to switch the bulb on and off. In the particular embodiment described the insulating member comprises a disc rotatably seated against a shoulder in a tubular lamp body of circular cross-section.
Patent GB-829811-A (GB)
Title: Improvements in or relating to sifting machines
IPC: B07B1/38
Filed: 1957-06-14
Abstract: 829,811. Filters. ORVILLE SIMPSON CO. June 14, 1957 [Dec. 17, 1956], No. 18851/57. Class 46. [Also in Group II] Liquid containing granular or fibrous material is fed through a sleeve 6, Fig. 1, on to a cone 18 and falls on to the periphery of a circular screen 15 to which is imparted a gyratory wobbling motion so that as the material is deliquefied it follows a path towards the screen centre where oversize material falls through an opening 25 to an outlet sleeve 34, and the finer material and liquid falls into a conical pan 2 and is led away through a sleeve 35. The central part of the screen may be arranged slightly below the level of the screen perimeter. Screen cleaning apparatus consists of a perforated plate 71 between which and the screen a number of balls are housed. Radial deflectors 74 of triangular cross-section with their sloping sides of different inclinations cause the balls to move circumferentially on the plate 71 and to bounce against the underside of the screen. The latter is clamped between the opposed flanges of the upper and lower parts of a housing 1 movably supported at three equally spaced points upon support members 40 which engage arms 41 extending from the housing. The supports, which impart the gyratory wobbling movement to the housing and screen, are mounted on a ring 62 resting on posts 63 secured to the floor, and each support includes a pedestal 55 which adjustably receives a sleeve 53 housing a rotary shaft 48 mounted in bearings 49, 50. An eccentric stub shaft 47 extends from each main shaft and is received within a bearing 44 mounted within a resiliently mounted sleeve 45 carried by the arm 41. A hollow flywheel 56 with a counterweight 66 is secured to each shaft 48 and is driven by an electric motor 60. Each shaft 47 rotates about an axis inclined to the screen plane, and the axes of the shafts 47 are inclined differentially with respect to one another. There is thus produced a gyration of the housing and screen and, because of the said inclinations of the shaft axes, vertical movements are imparted to the housing at the screen periphery to cause a wobbling motion. The inclination of each stub shaft 47 is adjustable in order to vary the screen motion according to the material to be treated, and for this purpose each motor 60 is mounted on a bracket 61 projecting from the sleeve 53, and arms 67, 68, Fig. 2, project from the bracket and are traversed by hold-down bolts 69 pivoted to the pedestal 55 and engaged by nuts 70. The lower portion of each sleeve 53 is arcuate and is received in a complementary shaped slot in the pedestal 55, so that the tilt of the axis of the shaft 47 may be varied in the plane of the slot by adjustment of the nuts.
Patent GB-188713-A (GB)
Title: Improvements in pickling iron or iron alloys
IPC: C23G1/06
Filed: 1921-07-12
Abstract: 188,713. British & Foreign Chemical Producers, Ltd. July 12, 1921. Pickling.- In order to avoid brittleness in pickled iron or iron alloys organic bases ccntaining nitrogen rings, especially the quinoline nucleus, are added to any usual pickling bath, which may comprise sulphuric acid of 5 per cent strength for hot pickling, or hydrochloric acid of 10-20 per cent strength for cold pickling, and 1-2 per cent of the nitrogen compound. Extracts from the distillation products of coal tar or fractions of coal tar distillates which contain the bases, or synthetic products may be used. Specification 158,768 is referred to.
Patent GB-608126-A (GB)
Title: An improved method for stabilising photographic images
IPC: G03C9/04
Filed: 1944-10-03
Abstract: 608,126. Stabilising photographic images. INTERNATIONAL POLAROID CORPORATION. Oct. 3, 1944, No. 18912. Convention date, Dec. 9, 1943. [Class 98 (ii)] A light polarising image consisting of a polyvinyl alcohol-iodine sorption complex carried in a molecularly oriented polyvinyl alcohol layer is stabilised by treatment with an inorganic substance which yields boric acid in aqueous solution and an aqueous solution of an agent capable of reacting with iodine to form a substantially -colourless water-soluble compound. Suitable boron compounds are boric acid itself, methyl borate, boron trifluoride and boric anhydride. The bleaching agent, which may be in a separate solution, may be sodium thiosulphate, sodium sulphite, stannous chloride, ferrous chloride, thiocarbamide or sodium perborate. A substance which assists the solution of iodine may be included in this solution, e.g. potassium, sodium or ammonium iodide or bromide. The treating solutions may contain substances which reduce the solubility of polyvinyl alcohol, e.g. sodium, potassium or ammonium sulphate or chloride. Specification 562,842 is referred to.
Patent GB-1076154-A (GB)
Title: Improved method of forging turbine blades
Inventor: SHARMAN JOHN CHARLES
IPC: F01D5/14
Filed: 1963-05-14
Abstract: 1,076,154. Forging turbine blades. PRECISION FORGINGS Ltd. May 7, 1964 [May 14, 1963], No. 18969/63. Headings B3A and B3H. A turbine blade is forged between main dies 15, 16 and also by a transversely acting auxiliary die 27, 28 which forms the blade root with a recess 12, Fig. 1 (not shown), and a projection 13. The auxiliary die may be in two or more relatively movable parts operated by a ram 26. Projections 31, Fig. 4 (not shown), limit the movement of the auxiliary die. In another embodiment, Fig. 2, the auxiliary die is in one part and has an axial recess for forming the axial projection 13, Fig. 1 (not shown), on the root of the blade.
Patent GB-601111-A (GB)
Title: Improvements in methods of plating non-metallic surfaces
IPC: C23C18/18
Filed: 1944-10-04
Abstract: A method of depositing a layer of silver on a non-metallic surface consists in forming on the said surface a layer of a partially hydrolysed shellac and then chemically depositing silver on said layer.  A design or image may be first formed in the layer of partially hydrolysed shellac.  A design or image may be formed of the silver deposited elsewhere after protecting the layer of partially hydrolysed shellac where silver is not required, or may be formed by depositing silver all over the shellac and removing the silver where not required.  The design may also be formed photographically.  Thus, the layer of partially hydrolysed shellac may be sensitised with a bichromate, exposed to an image, and the unexposed portions removed, silver being chemically deposited on the remainder.  The design may be formed by coating the surface with a layer of partially hydrolysed shellac, chemically depositing a uniform layer of silver, coating thereover a light sensitive layer in which the desired design is formed, removing the layer where the said silver is not required and etching out the said silver from the parts laid bare.  The shellac may be dyed in those parts where the silver has been partly or wholly removed.  Further metal may be deposited in any manner on the silver. A multi-coloured design may be produced by resilvering a surface once coated with silver which has been dyed in one colour, where silver has been removed, the remains of the light sensitive layer being then removed, another such layer is applied, and the operation of forming a design therein, and removing it imagewise and etching out the exposed silver and dyeing the shellac is repeated, and if desired a further dyed image can similarly be added.  After forming the desired dyed images, all the silver may be removed.
Patent GB-295813-A (GB)
Title: Variable pitch screw propeller
IPC: B64C11/36
Filed: 1927-07-18
Abstract: 295,813. Spina, E. Lanzerotti-. July 18, 1927. Screw propellers.-A variable-pitch air screw is provided with a non - rotatable sliding sleeve coaxial with the blade, which sleeve has steep and shallow screw threads engaging with corresponding threads upon the root of the propeller blade and upon a rotatable sleeve respectively, both being prevented from moving longitudinally. Steep slots may be used instead of threads. The blade roots are supported within a socket 4 and upon central spigot 5, journal and thrust ball bearings being provided. The blade root 6, Fig. 1, has a steep pitch thread 9 engaging a corresponding thread on the inside of a sleeve 10 which is feathered at 11 so as to be free to slide but is unable to rotate. On the outside of the sleeve is a thread 25 engaging a similar one on a rotatable pitch-adjusting sleeve 12. This sleeve is supported for rotation in ball bearings 13 and at its lower end is a bevel wheel 14 which meshes with an actuating bevel 15, Fig. 2, on a sleeve 16 that passes through the hub and externally carries a lever 17. For changing the pitch the lever 17 is moved by a rod 23 on a sleeve 18 which is adapted to move to and fro when the sleeve 19 moves on the screw thread 20 on a cylinder projecting from the hub. The sleeve 19 is rotated through gearing 21, 22 by the pilot.
Patent GB-722016-A (GB)
Title: Improvements in feed-mechanism for screws or other headed rod-like articles
Inventor: BROSCOMB DENNIS GEORGE
IPC: B65G47/14
Filed: 1951-08-15
Abstract: 722,016. Jigging shoots. G.K.N. GROUP SERVICES, Ltd. Aug. 15, 1952 [Aug. 15, 1951], No. 19199/51. Class 78 (1). A device for feeding screws and other headed articles from a bulk supply in a predetermined attitude comprises two slotted jigging shoots 19, 20, Fig. 2, arranged in alignment and having the cross-sections shown in Figs. 4, and 5, respectively. Any articles, .e.g. the screws 81, which do not fall into the slot of the shoot 19, pass on to the inclined edges 84, 85 of the shoot 20 from which they are shaken into the receptacles 86, 87. These receptacles have outlets through which the screws pass on to a conveyer or shoot 28 which returns them to the bulk supply. A helical jigging conveyer (not shown) raises the articles from the bulk supply to a shoot 18 which feeds the shoot 19.
Patent GB-1203398-A (GB)
Title: A starting clutch
IPC: F16H61/02
Filed: 1968-04-23
Abstract: 1,203,398. Controlling clutches. MOTORENUND TURBINEN - UNION MNCHEN G.m.b.H. 23 April, 1968 [29 April, 1967], No. 19212/68. Headings F2D and F2L. A starting clutch comprises a planetary gear 13 coupling drive and driven members 14, 16 the planet carrier 1 being coupled to a gear pump 2 the output of which flows through a valve 7 so that when the valve is open a prime mover can be run up under no load and the valve progressively closed to increase the resistance to flow until the pump and planet carrier stop rotating when the valve is closed and the load has been run up to the desired speed. A turbine 19 drives a machine 17 through sun gear 13, planet gears and a ring gear 15. The planet carrier 1 drives one or more gear pumps 3, 4 which have inlets 5 and a common outlet 6 which feeds fluid either through a valve 7 and cooler 26 to a compensating tank 11 or directly through a pressure-relief valve 8 to the tank. When the turbine 19 is started the ring 15 is stationary and the pump directs fluid to the tank 11 via valve 7, the latter being closed when turbine 19 has reached its minimum power supply speed. The pressure increase in outlet 6 causes deceleration of the planet carrier and the ring gear 15 takes up the drive. The maximum power transmitted is determined by the pressure relief valve 8 and a pressure gauge 9 indicates the transmitted torque. The planet carrier 1 is completely arrested by shifting a ring 24 into mesh with a gear 25 on the planet carrier. The oil circuit may include a cooler 26.
Patent GB-812873-A (GB)
Title: Improvements in and relating to magnetic filters
Inventor: SOMMERMEYER HEINRICH
IPC: B03C1/28
Filed: 1957-06-18
Abstract: 812,873. Magnetic filters. ARLON, N.V. June 18, 1957, No. 19225/57. Class 117 A magnetic filter for cleaning liquids in which solid particles are suspended comprises a casing 1 provided with two chambers 4 each communicating with a central cylindrical shaped part by means of a vertical slot 5. The central part of the casing contains a magnetic body consisting of discs 6 of a hard magnetic material having discs 7 of soft magnetic material, e.g. soft iron, between them, the discs being carried by a non-magnetic rod 8 secured to a cover 9 which is removably seated in the top of the casing. Liquid to be treated enters one of two connections 2, 3 and, passing through one of the slots 5, strikes the circumferential surface of the magnetic body. The attracted magnetic particles constitute a kind of brush which removes non-magnetic particles. The cleaned liquid leaves the filter by the other connection. The hard magnetic discs may be placed with their faces of same polarity facing each other.
Patent GB-706841-A (GB)
Title: Improvements relating to turbine jet propulsion power units
IPC: F02K3/02
Filed: 1948-07-17
Abstract: 706,841. Gas turbine jet propulsion plant. SHARMA, D. N. July 16, 1949 [July 17, 1948], No. 19238/48. Class 110(3) A gas turbine jet propulsion plant has two coaxially arranged air paths leading to a common axial jet exhaust, the outer path leading from a compressor and burners to said exhaust, and the inner path, which is a central path along the axis of the turbine, including burners which lie in said path. The gas turbine plant shown comprises a central feed tube 115 axially disposed with respect to the casing 117. A compressor rotor 118 supported on bearings 119, 120, 121 and mounted between the tube 115 and casing 117 carries inwardly directed blades 122 and outwardly extending blades 123 which co-operate with stator blades 124, 125 carried by the tube 115 and casing 117 respectively. The rotor 118 also drives a propeller 135 through gearing 126. 127, 130, 132. Compressed air from the compressor passes through apertures 136 to a combustion chamber 137 in which liquid or gaseous fuel supplied through conduits 139 is burnt. The hot gases leaving the combustion chamber 137 are mixed in the space 142 with air from the feed tube 115 delivered through apertures 143, 144, before they are used to drive the turbine blades, 145. 146. The exhaust gases from the turbine pass through the pipe 149 and are controlled by vanes 150. 151, 152 and 153. The area 154 adjacent the rear of the feed tube 118 contains a number of additional burners (not shown). The turbine end of the rotor 118 is supported from the feed tube 115 by bearings 147. The two tiers of compressor blades may be arranged in series or in parallel. It is also stated that the plant may employ atomic energy as a source of heat.
Patent GB-889517-A (GB)
Title: Method of manufacturing shoes having rubber, synthetic resin or like soles, and apparatus therefor
Inventor: SILOMBRA ARMANDA
IPC: B29D35/14
Filed: 1960-05-31
Abstract: 889,517. Moulding footwear. SUPERGA S.p.A. May 31, 1960, No. 19277/60. Class 87(2). [Also in Group VII] In the manufacture of shoes having soles made of rubber, synthetic resin or the like a tread sole 4 is placed into the open hollow of a mould 1, and an extension 4a, matching in shape the forward face of the shoe heel, is held in the mould spaced from a rubber mix or other material introduced into the mould to form an inner sole. In one embodiment the extension 4a is located in a slot 3 in the mould 1 while the upper 5, insole 6 and sole 7 are being joined to the tread sole by moulding. After removal from the mould a heel is attached to the sole and the extension 4a glued to the forward face and bottom of the heel. In a second embodiment, Figs. 4 to 6 (not shown), the extension is glued to the heel before the moulding operation.
Patent GB-910598-A (GB)
Title: Improvements in or relating to weft detection arrangements for looms
Inventor: HEAP HAROLD
IPC: D03D51/34
Filed: 1958-06-17
Abstract: 910,598. Weft stop motion. HUTCHINSON, HOLLINGWORTH & CO. Ltd. June 17, 1959 [June 17, 1958], No. 19288/58. Class 142 (2). A drop box loom has a cop feeler 46 for each cell of the drop box, the feelers being slidably mounted on vertical guide rods 20 and moved up and down by linkage from the box motion so that the feelers operate in their respective cells at each beat-up. Only the feeler pertaining to the cell that is level with the shuttle race, however, is within range of a flap 66 pivoted on a vertical spindle. If this feeler slips along a depleted bobbin, its tail 64 turns the flap to push a lever 70, pivoted at 72, under an arm 78. The arm 78 is oscillated about a normally stationary pivot 82 by cam-operated linkage 124, but when the lever 70 blocks downward movement of the free end of the arm 78, the pivot 82 pushes a link 80 to stop the loom.